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How To Keep The Algae And Moss Off Your Roof

Roof moss

Roof moss

When the rain water passes over the copper flashing, a little copper gets mixed into the rain.

Which acts as a poison to the moss

Roof Mold

Roof Mold

and algae. The copper will change color to a green-like grey, but that’s a lot better looking than all that moss and algae!


The trick is to put the flashing under the tab of the shingle as far up the roof as you can. You can use a roofing tar and a few nails about every 32 inches apart. Making sure the flashing lays as flat as it can.

It’s always a good idea to run it the total length of the roof, why not, you’re up there anyway.

Besides copper, you can use zinc coated flashing but it may be harder to find in the stores. All flashing can be found at any home center.

how to prevent roof moss and algae
Watch this video on YouTube.
Doing my best to bring you the best videos I know how.


Comments ( 18 )

  1. What is the name of the super duper moss killing solution in the video?

  2. On this site is how you make it. Look up “how to clean a roof”

  3. make it your self as shown here. There is no name. Like home made cookies

  4. the name of the moss roof solution you used on video

  5. What did you use in the video to kill moss (super duper killer)?

  6. Tilmon Duguay
    May 21, 2013 at 10:29 pm

    hi dominick i would like to know about the pool shock liquid brand name ..if i us 1 gallon of the pool shock and add 2 gallon of water if its gonna work the same way of the video of roof sparkle …if not can you tell me what i need to used to have the same result im from moncton new- brunswick , canada and we have a lots of problem of that black mold and algae ..i own a roofing company here thank you

  7. Yes, you will have to repeat and then help the moss off the roof with a light brush or even by hand. The important thing is you kill the moss.

  8. Will the liquid pool shock clean moss as well or will I need another process? Thanks.

  9. Yes. Chances are once you have moss you have already lessen the life of your roof.

  10. Does having moss on your roof damage the roof? Thanks.

  11. The cleaner comes from Roof however right now as of 7/2011 they are able to legally ship it via mail.

    Either copper or zinc works good for preventing it but will not kill anything you have already. That would need to be cleaned first.

  12. Dasn Christopherson
    July 8, 2011 at 11:15 am

    Could you send me the name of the super duper roof cleaner you used in the video.What strip works better copper or zinc for killing and preventing moss?

    Thanks, Dan Christopherson

  13. what is the product used by Dominick to kill moss on roof?

  14. Would like to know product that Dominick used to remove moos off of the roof.

  15. Looking for name of product used to clean moss off roof. Thanks

  16. Burl A. Rogers
    May 24, 2011 at 1:51 pm

    What is the name of the "super-duper moss killer" used in the video on removing moss?

  17. Would you please e-mail the name of the product Dominick used to clean the algae/moss off the roof in his you-tube video?
    Thank you.
    Rick Roehrich

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